Suggestion on Guitar Books

I have been trying to learn guitar since a year - I joined a guitar class to learn basic plucking and strumming techniques. However, due to lack of time and unavailabilty of any good tutor nearby, i had to quit. Now I play some tabs posted on the site on my own, but i realize that this is not the way to properly learn guitar .

Can you guitar gurus (my virtual mentors ) suggest some good books on guitar? I understand that i am too naive in this field, but i am particularly passionate about mastering tabs and instrumental guitar.